Knox went 186-147-1 during 22 seasons as an NFL head coach, including two stints with the Rams. He won five straight NFC West titles from 1973-77, and he returned in 1992 for the franchise's final three seasons in Los Angeles before its move to St. Louis.

The Pennsylvania native left the Rams in 1978 for the Buffalo Bills. After five seasons, he took over the Seahawks in 1983 and immediately led the franchise to its first playoff berth and the AFC title game.